基于Vega Prime的航天器视景仿真中的多坐标系问题

Research on Various Coordinate Systems in Spacecraft Visual Simulation Based on Vega Prime

正确理解、掌握和综合运用多种坐标系统是航天器视景仿真开发过程中至关重要的基础所在,也是开发过程中较大的一个难点。首先对航天器视景仿真中经常使用的坐标系统进行了分析,然后给出了在VegaPrime环境中定义、创建和使用不同坐标系的方法,最后还给出了不同坐标系间位置和姿态数据的转换方法。文中给出的开发思路对于远程导弹、运载火箭、人造卫星等各类航天器的视景仿真开发都具有很高的通用性和实用性。

Understanding, grasping and applying various coorcllnate systems in the spacecraft visual simulation development is not only a fundamental but also a difficult aspect, The coordinate systems that are often used in simulations were introduced at first, then the methods for defining, creating and referring various coordinate systems were proposed, and the data conversion between coordinate systems was illustrated at last. The presented principles are of high generality and usability for the visual simulation developments of spacecraft such as long-range missiles, rockets and man-made satellites.